how to make edittext and alertdialog has same width?

a alertdialog include a edittext

how to make edittext's width same with the alertdialog's开发者_如何学Python (NO ABSOLUTE LAYOUT) ?

You can create a custom alertDialog and use the following code:

EditText myEditText = (EditText) activity.getViewById(R.id.myEditText);
myEditText.setLayoutParams(LayoutParams.MATCH_PARENT);

Give that a try.